{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["RNA", "protein", "DNA", "cell line"], "input": "These values were determined at the onset of clinical symptoms of PIH ."}
{"RNA": [], "protein": [], "DNA": [], "cell line": []}